PayScale often receives questions about how many salary survey employee profiles we have.
Our answer is we have enough, and the number is growing rapidly. :-)
This begs the question, how large a salary survey data set is enough? How many data points are required for PayScale data to be truly significant? The number needed depends on what questions are being asked. In this post, I'll look at the questions the United States Bureau of Labor Statistics and PayScale typically ask, and the amount of data each needs to handle statistical fluctuations.
You can experience our data techniques first-hand by trying the PayScale salary survey.